Automobile skylight drainage pipe with excellent drainage capacity

By setting connections and plugging grooves on the fixed end of the pipe body of the car sunroof drain pipe, a pressure relief gap is formed, which solves the problem of drainage blockage caused by excessive influx of rainwater in an instant, and improves drainage performance and stability.

CN222875735UActive Publication Date: 2025-05-16DONGGUAN KAIFEITE PRECISION MFG CO LTD
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Patent Information

Application Number
CN202422068966.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-24
Publication Date
2025-05-16
Estimated Expiration
2034-08-24

AI Technical Summary

Technical Problem

When a large amount of rainwater pours into the existing car sunroof drain pipes, the water column in the pipeline will easily stop flowing, resulting in a decrease in drainage capacity.

Method used

A kind of automobile sunroof drain pipe is designed, and the fixed end of the pipe body is provided with a connecting piece, and the connecting piece is opened in the length direction with a flow hole, and is combined with the plug groove to form a pressure relief gap, balance the air pressure in the pipe body, and prevent the water column from stopping flow.

Benefits of technology

Through the design of the pressure relief gap, drainage blockage caused by excessive influx of instantaneous rainwater is reduced, and the drainage performance and stability of the drainage pipe is improved.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222875735U_ABST
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Abstract

The utility model relates to an automobile skylight drainage pipe with excellent drainage capacity, which comprises a pipe body, the pipe body is used for rainwater circulation, the free end of the pipe body is connected into a drainage hole, the fixed end of the pipe body is provided with a connecting piece, the connecting piece is provided with a circulation hole in a penetrating manner along the length direction, and the circulation hole is used for rainwater circulation. The connecting piece is used for being connected with a drainage groove or connected to another pipe body, the connecting piece comprises an inserting part, the end face of the inserting part is sunken in the length direction to form an inserting groove, the inserting groove is used for allowing the fixed end of the pipe body to be inserted, and when the fixed end of the pipe body is inserted into the inserting groove, the pipe body is inserted into the inserting groove. A pressure relief gap is formed between the surface of the pipe body and the inserting groove and used for balancing the air pressure in the pipe body, and the effect of enhancing the drainage capacity of the drainage pipe is achieved.
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Description

Technical Field

[0001] The present application relates to the field of drain pipes, and in particular to a car sunroof drain pipe with excellent drainage capability. Background Art

[0002] A car with a sunroof can not only provide a more spacious and bright driving environment and enhance the lighting inside the car, but also introduce fresh air during driving by opening the sunroof, improving the air quality inside the car and bringing passengers a more pleasant and healthy driving experience. At the same time, the design of the sunroof also adds a touch of modernity and luxury to the vehicle, improving the overall aesthetics.

[0003] For cars with sunroofs, special attention must be paid to the drainage performance of the sunroof to reduce the probability of rainwater entering the interior of the car body along the gap between the sunroof and the car body; therefore, in order to enhance the drainage capacity of the sunroof, it is necessary to use a pipe for drainage. Currently, there is an integrally formed pipe, the two ends of the pipe are respectively connected to the drainage groove of the sunroof and the drainage hole of the car body, so as to achieve the purpose of quickly discharging rainwater along the car body.

[0004] However, in actual applications, if the amount of water instantly flowing into the pipe is too much, but the water outlet of the pipe cannot discharge the rainwater in the pipe in time, the rainwater will form a water column in the pipe. At this time, the pipe air pressure at both ends of the water column is in a balanced state. Due to the effect of air pressure, the water column in the pipe will stop flowing, affecting the drainage capacity of the skylight. There is room for improvement. Utility Model Content

[0005] In order to enhance the drainage capability of a drain pipe, the present application provides a car sunroof drain pipe with excellent drainage capability.

[0006] The present application provides a car sunroof drain pipe with excellent drainage capacity, which adopts the following technical solution:

[0007] A car sunroof drain pipe with excellent drainage ability includes a pipe body, the pipe body is used for rainwater to flow, the free end of the pipe body is connected to the drain hole, the fixed end of the pipe body is provided with a connector, the connector is penetrated with a flow hole along the length direction, the flow hole is used for rainwater to flow, the connector is used to connect to the drain groove / or to another pipe body, the connector includes a plug-in part, the plug-in part is recessed along the length direction by the end face to form a plug-in groove, the plug-in groove is used for the fixed end of the pipe body to be inserted, when the fixed end of the pipe body is inserted into the plug-in groove, a pressure relief gap is formed between the surface of the pipe body and the plug-in groove, and the pressure relief gap is used to balance the air pressure in the pipe body.

[0008] By adopting the above technical scheme, rainwater is discharged through the pipe body. Since the fixed end of the pipe body is provided with a connecting piece, the connection with another pipe body can be achieved through the connecting piece, so as to achieve the purpose of freely adjusting the overall length of the drainage pipe without producing a variety of pipe bodies with different lengths; at the same time, when it is necessary to achieve the connection between the fixed end of the pipe body and the connecting piece, it is only necessary to insert the fixed end of the pipe body into the plug-in groove, which is easy to install; since a pressure relief gap can be formed between the pipe body and the plug-in groove, when rainwater enters the pipe body, the pressure in the pipe body will be discharged along the pressure relief gap, so as to achieve the purpose of balancing the air pressure in the pipe body, reduce the probability of the situation that the rainwater cannot be discharged smoothly along the drainage hole due to excessive amount of rainwater instantly pouring into the pipe body, and play a positive guiding role in improving the drainage performance of the drainage pipe.

[0009] Preferably, the gap between the rear end of the plug-in slot and the bottom of the plug-in slot is gradually reduced.

[0010] By adopting the above technical solution, the spacing between the plug-in grooves tends to gradually decrease, forming a clamping effect on the fixed end of the pipe body, thereby reducing the amount of rainwater that instantly flows into the pipe body, causing the pipe body to instantly withstand excessive impact force, resulting in the probability of loosening of the connection between the connector and the pipe body.

[0011] Preferably, the flow hole is arranged in a cone shape from one end away from the end face of the plug-in portion to one end close to the end face of the plug-in portion, and the aperture of the flow hole close to the end face of the plug-in portion is smaller than the aperture of the flow hole away from the end face of the plug-in portion.

[0012] By adopting the above technical solution, it is beneficial to reduce the flow rate that instantly flows into the pipe body along the flow hole, further reduce the impact force that the pipe body instantly bears, and at the same time, form a pressure relief cavity between the flow hole and the inner wall of the pipe body, so that the air pressure in the pipe body can be quickly discharged along the pressure relief gap.

[0013] Preferably, the connector further comprises a fixing portion, the fixing portion is connected to the plug-in portion, and the diameter of the flow hole located at the fixing portion is larger than the diameter of the flow hole located at the plug-in portion.

[0014] By adopting the above technical solution, rainwater is initially stored through the fixed part, so that the amount of rainwater instantly entering the fixed part is greater than the amount of rainwater entering the pipe body along the plug-in part, so that the flow of rainwater flowing into the pipe body along the plug-in part is relatively balanced.

[0015] Preferably, a buffer portion is provided between the connection between the fixing portion and the plug-in portion, and the buffer portion includes an inner buffer portion, and two ends of the inner buffer portion are respectively connected to the flow holes of the plug-in portion and the fixing portion.

[0016] By adopting the above technical solution, the impact force borne by the plug-in part when rainwater enters the plug-in part along the fixing part is reduced through the buffering effect of the inner buffer area, so that the rainwater can flow smoothly into the plug-in part.

[0017] Preferably, the buffer portion further includes an external clamping area, and the external clamping area is used for clamping the drainage groove or clamping another pipe body.

[0018] By adopting the above technical solution, through the clamping effect of the outer clamping area, it is easy to connect the connector to the drainage groove or realize the connection between the connector and another pipe body, and the connection method is simple.

[0019] Preferably, a shock absorbing member is provided somewhere between the free end of the tube body and the fixed end of the tube body, or on the entire tube body.

[0020] By adopting the above technical solution, the noise generated when vibration occurs between the pipe body and the vehicle body can be reduced through the shock absorbing and buffering effects of the shock absorbing member.

[0021] Preferably, a plurality of clamping parts are arranged on the outer wall along the length direction of the tube body, and the clamping parts are used to realize the connection between the tube body and the vehicle body.

[0022] By adopting the above technical solution, the connection between the pipe body and the vehicle body can be realized through the clamping piece, so that the installation method of the drain pipe on the vehicle body is relatively simple.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Because a pressure relief gap can be formed between the pipe body and the plug-in slot, when rainwater enters the pipe body, the pressure in the pipe body will be released along the pressure relief gap, achieving the purpose of balancing the air pressure in the pipe body, reducing the probability of excessive rainwater instantly flowing into the pipe body, resulting in the rainwater being unable to be discharged smoothly along the drainage hole, and playing a positive guiding role in improving the drainage performance of the drainage pipe;

[0025] 2. Since the aperture of the flow hole close to the end face of the plug-in part is smaller than the aperture of the flow hole far from the end face of the plug-in part, it is helpful to reduce the flow rate that flows into the pipe body along the flow hole instantaneously, thereby reducing the impact force that the pipe body instantaneously bears;

[0026] 3. Preliminary storage of rainwater is performed through the fixed part, so that the amount of rainwater instantly entering the fixed part is greater than the amount of rainwater entering the pipe body along the plug-in part, so that the flow of rainwater flowing into the pipe body along the plug-in part is relatively balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a car sunroof drain pipe with excellent drainage capacity in an embodiment of the present application.

[0028] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of a car sunroof drain pipe with excellent drainage capacity.

[0029] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0030] Explanation of the reference numerals in the accompanying drawings: 1. Tube body; 2. Connector; 21. Plug-in portion; 22. Fixing portion; 3. Flow hole; 4. Plug-in groove; 5. Pressure relief gap; 6. Buffer portion; 61. Inner buffer area; 62. Outer clamping area; 7. Shock absorber; 8. Clamping member; 81. Clamp; 82. Buckle; 9. Pressure relief chamber. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-3 This application is described in further detail.

[0032] The present application embodiment discloses a car sunroof drain pipe with excellent drainage capability. Figure 1 and Figure 2 A car sunroof drain pipe with excellent drainage capacity includes a pipe body 1, the pipe body 1 is used for rainwater circulation, the free end of the pipe body 1 is connected to the drainage hole, the fixed end of the pipe body 1 is provided with a connector 2, the connector 2 is penetrated with a flow hole 3 along the length direction, the flow hole 3 is used for rainwater circulation, the connector 2 is used to connect to the drainage trough / or to another pipe body, and the rainwater is discharged by the pipe body 1. Because the fixed end of the pipe body 1 is provided with the connector 2, the connection with another pipe body can be achieved through the connector 2, so that the overall length of the drain pipe can be adjusted at will without producing a variety of pipe bodies 1 of different lengths; at the same time, when it is necessary to realize the connection between the fixed end of the pipe body 1 and the connector 2, it is only necessary to insert the fixed end of the pipe body 1 into the plug-in slot 4, which is easy to install.

[0033] Among them, the "drainage hole" and the "drainage groove" are holes reserved for the car body during the production process. The drainage hole is used to drain rainwater to the ground, and the drainage groove is used to initially contain rainwater near the skylight, and its molding method will not be elaborated here.

[0034] Specifically, the tube body 1 can be made of plastic, rubber, thermoplastic elastomer (TPV) and other materials, which are not limited here. At the same time, its appearance can be changed according to design requirements. In this embodiment, the tube body 1 is selected as a corrugated tube, which has the characteristics of being bendable and easy to deform.

[0035] At the same time, a shock absorbing member 7 is provided somewhere between the free end of the tube body 1 and the fixed end of the tube body 1, or on the tube body 1 as a whole. The somewhere can be any position along the length direction of the tube body 1, and the installation position and length of the shock absorbing member 7 can also be changed according to actual needs. The shock absorbing member 7 can be a rubber hose, which is sleeved on the tube body 1. In this embodiment, the shock absorbing member 7 is a shock absorbing cotton tube. When the tube body 1 is installed on the vehicle body, the vehicle will generate certain vibrations during driving. Therefore, the noise generated by the vibration between the tube body 1 and the vehicle body is reduced through the shock absorbing and buffering effect of the shock absorbing member 7.

[0036] On the other hand, a plurality of clamping members 8 are provided on the outer wall along the length direction of the tube body 1, and the clamping members 8 are used to realize the connection between the tube body 1 and the vehicle body. The number of the clamping members 8 needs to be increased or decreased according to the length of the tube body 1, and the components and installation methods thereof are the same. The following description will be made by taking any one of the clamping members 8.

[0037] The clamping member 8 includes a clamp 81 and a buckle 82, wherein the buckle 82 is connected to the clamp 81, the clamp 81 is used to fix the outer peripheral wall of the pipe body 1, and the buckle 82 is used to engage with the vehicle body. It should be noted that during the vehicle body manufacturing process, a clamping hole is pre-opened on the vehicle body, and the buckle 82 engages with the clamping hole. Through the clamping action of the buckle 82, the clamping member 8 can be quickly fixed to the vehicle body, so that the pipeline can be stably installed on the vehicle body, and the installation speed and stability of the pipeline when installed on the vehicle body are improved.

[0038] Correspondingly, refer to Figure 3 The connector 2 includes a plug-in portion 21, and the plug-in portion 21 is formed by a plug-in groove 4 which is recessed along the length direction of the end surface. The plug-in groove 4 is used for inserting the fixed end of the pipe body 1. When the fixed end of the pipe body 1 is inserted into the plug-in groove 4, a pressure relief gap 5 is formed between the surface of the pipe body 1 and the plug-in groove 4. The pressure relief gap 5 is used to balance the air pressure in the pipe body 1. As mentioned above, the pipe body 1 has the characteristics of being bendable and easy to deform. Therefore, the groove width of the plug-in groove 4 is greater than the wall thickness of the pipe body 1, so that the fixed end of the pipe body 1 can be smoothly inserted into the plug-in groove 4.

[0039] Its function is that, since a pressure relief gap 5 can be formed between the pipe body 1 and the plug-in groove 4, when rainwater enters the pipe body 1, the pressure in the pipe body 1 will be released along the pressure relief gap 5, thereby achieving the purpose of balancing the air pressure in the pipe body 1, reducing the probability of excessive amount of rainwater instantly flowing into the pipe body 1, resulting in the rainwater being unable to be discharged smoothly along the drainage hole, and playing a positive guiding role in improving the drainage performance of the drainage pipe.

[0040] Correspondingly, the gap between the tail end of the plug-in groove 4 and the bottom of the plug-in groove 4 is gradually reduced, thereby forming an arc-shaped contraction area. When the fixed end of the tube body 1 is inserted into the plug-in groove 4, the end face of the fixed end of the tube body 1 will abut against the bottom of the plug-in groove 4, and the fixed end of the tube body 1 will be clamped through the arc-shaped contraction area, thereby reducing the excessive amount of rainwater that instantly flows into the tube body 1, causing the tube body 1 to instantly withstand excessive impact force, resulting in the probability of loosening of the connector 2 and the tube body 1.

[0041] At the same time, refer to Figure 2 and Figure 3 The flow hole 3 is tapered from one end away from the end face of the plug-in portion 21 to the end close to the end face of the plug-in portion 21 , and the aperture of the flow hole 3 at the end face of the plug-in portion 21 is smaller than the aperture of the flow hole 3 away from the end face of the plug-in portion 21 .

[0042] Depend on Figure 3 As shown (the dotted arrow in the figure indicates the flow direction of rainwater flowing along the plug-in part into the tube body), when rainwater enters the flow hole 3, because the aperture of the flow hole 3 at the end face of the plug-in part 21 is smaller than the aperture of the flow hole 3 away from the end face of the plug-in part 21, the amount of rainwater instantly flowing out along the end face close to the plug-in part 21 is smaller than the amount of rainwater instantly entering the flow hole 3 along the end face away from the plug-in part 21, so that a pressure relief cavity 9 is formed between the flow hole 3 and the inner wall of the tube body 1, and the rainwater has a certain kinetic energy due to gravity, so that the rainwater cannot fill the pressure relief cavity 9. At this time, the gas in the tube body 1 will gather in the pressure relief cavity 9. As the gas pressure in the pressure relief cavity 9 increases, the gas in the pressure relief cavity 9 will quickly leak out along the pressure relief gap 5, which is beneficial to further reduce the probability of rainwater being blocked from flowing along the tube body 1.

[0043] Reference Figure 2 and Figure 3 The connecting part also includes a fixing part 22, which is connected to the plug-in part 21. The aperture of the flow hole 3 located in the fixing part 22 is larger than the aperture of the flow hole 3 located in the plug-in part 21. The rainwater is initially stored through the fixing part 22, so that the amount of rainwater instantly entering the fixing part 22 is larger than the amount of rainwater entering the pipe body 1 along the plug-in part 21, so that the flow rate of rainwater flowing into the pipe body 1 along the plug-in part 21 is relatively balanced.

[0044] Correspondingly, a buffer portion 6 is provided at the connection between the fixed portion 22 and the plug-in portion 21. The buffer portion 6 includes an inner buffer portion 61. The two ends of the inner buffer portion 61 are respectively connected to the flow holes 3 of the plug-in portion 21 and the fixed portion 22. Since the aperture of the flow hole 3 of the fixed portion 22 is larger than the aperture of the flow hole 3 of the plug-in portion 21, the contour of the inner buffer portion 61 is set in an arc shape. Through the buffering effect of the inner buffer portion 61, the impact force borne by the plug-in portion 21 when rainwater enters the plug-in portion 21 along the fixed portion 22 is reduced, so that the rainwater can flow smoothly into the plug-in portion 21.

[0045] At the same time, the buffer portion 6 also includes an external clamping area 62, which is used to clamp the drain trough or another pipe body. The dimensions of the two ends of the external clamping area 62 are respectively adapted to the outer diameters of the plug-in portion 21 and the fixed portion 22, so that the contour of the external clamping area 62 close to one end of the fixed portion 22 to the external clamping area 62 close to one end of the plug-in portion 21 is set in an arc shape, and the dimensions of the external clamping area 62 close to one end of the fixed portion 22 to the clamping area close to one end of the plug-in portion 21 are gradually increased. Through the clamping effect of the external clamping area 62, it is convenient to connect the connector 2 to the drain trough or realize the connection between the connector 2 and another pipe body, and the connection method is simple.

[0046] The implementation principle of the automobile sunroof drain pipe with excellent drainage ability in the embodiment of the present application is: use the pipe body 1 to drain rainwater. Since the fixed end of the pipe body 1 is provided with a connecting piece 2, the connection with another pipe body can be achieved through the connecting piece 2, so as to achieve the purpose of freely adjusting the overall length of the drain pipe without producing a variety of pipe bodies 1 with different lengths; at the same time, when it is necessary to achieve the connection between the fixed end of the pipe body 1 and the connecting piece 2, it is only necessary to insert the fixed end of the pipe body 1 into the plug-in groove 4, which is easy to install; since a pressure relief gap 5 can be formed between the pipe body 1 and the plug-in groove 4, when rainwater enters the pipe body 1, the pressure in the pipe body 1 will be discharged along the pressure relief gap 5, so as to achieve the purpose of balancing the air pressure in the pipe body 1, reduce the probability of the situation that the rainwater cannot be discharged smoothly along the drainage hole due to excessive amount of rainwater instantly flowing into the pipe body 1, and play a positive guiding role in improving the drainage performance of the drain pipe.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A car sunroof drain pipe with excellent drainage capacity, characterized in that: The invention comprises a pipe body (1), wherein the pipe body (1) is used for rainwater circulation, the free end of the pipe body (1) is connected to a drainage hole, the fixed end of the pipe body (1) is provided with a connecting piece (2), the connecting piece (2) is provided with a circulation hole (3) along the length direction, the circulation hole (3) is used for rainwater circulation, the connecting piece (2) is used for connecting to a drainage groove / or connecting to another pipe body, the connecting piece (2) comprises a plug-in portion (21), the plug-in portion (21) is formed by an end face being recessed along the length direction to form a plug-in groove (4), the plug-in groove (4) is used for the fixed end of the pipe body (1) to be inserted, when the fixed end of the pipe body (1) is inserted into the plug-in groove (4), a pressure relief gap (5) is formed between the surface of the pipe body (1) and the plug-in groove (4), the pressure relief gap (5) is used for balancing the air pressure in the pipe body (1).

2. The automobile sunroof drain pipe with excellent drainage capability according to claim 1, characterized in that: The gap between the rear end of the plug-in slot (4) and the bottom of the plug-in slot (4) is arranged to be gradually reduced.

3. The automobile sunroof drain pipe with excellent drainage capability according to claim 1, characterized in that: The circulation hole (3) is arranged in a conical shape from one end away from the end surface of the plug-in portion (21) to one end close to the end surface of the plug-in portion (21), and the diameter of the circulation hole (3) close to the end surface of the plug-in portion (21) is smaller than the diameter of the circulation hole (3) away from the end surface of the plug-in portion (21).

4. The automobile sunroof drain pipe with excellent drainage capability according to claim 1, characterized in that: The connecting member (2) further comprises a fixing portion (22), wherein the fixing portion (22) is connected to the plug-in portion (21), and the diameter of the flow hole (3) located in the fixing portion (22) is larger than the diameter of the flow hole (3) located in the plug-in portion (21).

5. The automobile sunroof drain pipe with excellent drainage capability according to claim 4, characterized in that: A buffer portion (6) is provided between the connection point between the fixing portion (22) and the plug-in portion (21), and the buffer portion (6) comprises an inner buffer region (61), and two ends of the inner buffer region (61) are respectively connected to the flow holes (3) of the plug-in portion (21) and the fixing portion (22).

6. The automobile sunroof drain pipe with excellent drainage capability according to claim 5, characterized in that: The buffer portion (6) further comprises an external clamping area (62), and the external clamping area (62) is used for clamping a drainage groove or clamping another pipe body.

7. The automobile sunroof drain pipe with excellent drainage capability according to claim 1, characterized in that: A shock absorbing member (7) is provided somewhere between the free end of the tube body (1) and the fixed end of the tube body (1), or on the entire tube body (1).

8. The automobile sunroof drain pipe with excellent drainage capability according to claim 1, characterized in that: A plurality of clamping parts (8) are arranged on the outer wall along the length direction of the tube body (1), and the clamping parts (8) are used to realize the connection between the tube body (1) and the vehicle body.